/* Responsive Overrides */

/* Tablet and below */
@media (max-width: 768px) {

  /* Nav: show hamburger, hide links by default */
  .nav-toggle {
    display: block;
    z-index: 10;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    height: 100vh;
    background: var(--color-surface);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--space-8);
    box-shadow: var(--shadow-lg);
    transform: translateX(100%);
    transition: transform var(--transition);
  }

  .header.nav-open .nav-links {
    transform: translateX(0);
  }

  /* Hamburger animation */
  .header.nav-open .nav-toggle span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  .header.nav-open .nav-toggle span:nth-child(2) {
    opacity: 0;
  }
  .header.nav-open .nav-toggle span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .nav-link {
    font-size: var(--text-lg);
  }

  /* About: single column */
  .about-grid {
    grid-template-columns: 1fr;
    justify-items: center;
  }

  .about-image-placeholder {
    width: 220px;
    height: 260px;
  }

  /* Timeline: left-aligned single column */
  .timeline::before {
    left: 16px;
    transform: none;
  }

  .timeline-item,
  .timeline-item[data-position="left"],
  .timeline-item[data-position="right"] {
    width: 100%;
    margin-left: 0;
    padding-left: calc(16px + var(--space-10));
    padding-right: var(--space-4);
    text-align: left;
  }

  .timeline-dot,
  .timeline-item[data-position="left"] .timeline-dot,
  .timeline-item[data-position="right"] .timeline-dot {
    left: 10px;
    right: auto;
  }

  /* Timeline animation: all from left on mobile */
  .timeline-item[data-position="left"].fade-in,
  .timeline-item[data-position="right"].fade-in {
    transform: translateX(-24px) translateY(0);
  }

  /* Projects: single column on narrow tablets */
  .projects-grid {
    grid-template-columns: 1fr;
  }

  /* Hero actions: stack on small screens */
  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* Small phones */
@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-4);
  }

  .section {
    padding: var(--space-16) 0;
  }

  .hero-name {
    font-size: var(--text-3xl);
  }

  .hero-tagline {
    font-size: var(--text-2xl);
  }

  .timeline-content {
    padding: var(--space-4);
  }

  .project-info {
    padding: var(--space-4);
  }
}